/**
* Create a splash screen (borderless graphic for display while other operations are taking
* place).
*
* @param filename a class-relative path to the splash graphic
* @param callingClass the class to which the graphic filename location is relative
*/
public SplashScreen(String filename, Class callingClass) {
super(new Frame());
URL imageURL = callingClass.getResource(filename);
image = Toolkit.getDefaultToolkit().createImage(imageURL);
// Load the image
MediaTracker mt = new MediaTracker(this);
mt.addImage(image, 0);
try {
mt.waitForID(0);
} catch (InterruptedException ie) {
}
// Center the window on the screen
int imgWidth = image.getWidth(this);
int imgHeight = image.getHeight(this);
setSize(imgWidth, imgHeight);
Dimension screenDim = Toolkit.getDefaultToolkit().getScreenSize();
setLocation((screenDim.width - imgWidth) / 2, (screenDim.height - imgHeight) / 2);
setVisible(true);
repaint();
// if on a single processor machine, wait for painting (see Fast Java Splash Screen.pdf)
if (!EventQueue.isDispatchThread()) {
synchronized (this) {
while (!this.paintCalled) {
try {
this.wait();
} catch (InterruptedException e) {
}
}
}
}
}
/**
* Returns the specified image as icon.
*
* @param name name of icon
* @return icon
*/
public static ImageIcon icon(final String name) {
ImageIcon ii = ICONS.get(name);
if (ii != null) return ii;
Image img;
if (GUIConstants.scale > 1) {
// choose large image or none
final URL url =
GUIConstants.large() ? BaseXImages.class.getResource("/img/" + name + "_32.png") : null;
if (url == null) {
// resize low-res image if no hi-res image exists
img = get(url(name));
final int w = (int) (img.getWidth(null) * GUIConstants.scale);
final int h = (int) (img.getHeight(null) * GUIConstants.scale);
final BufferedImage tmp = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
final Graphics2D g2 = tmp.createGraphics();
g2.setRenderingHint(
RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
g2.drawImage(img, 0, 0, w, h, null);
g2.dispose();
img = tmp;
} else {
img = get(url);
}
} else {
img = get(name);
}
ii = new ImageIcon(img);
ICONS.put(name, ii);
return ii;
}
private void scaleImage() {
Image img =
back.getScaledInstance(scx(back.getWidth()), scy(back.getHeight()), Image.SCALE_SMOOTH);
back =
new BufferedImage(img.getWidth(null), img.getHeight(null), BufferedImage.TYPE_INT_ARGB);
Graphics g = back.getGraphics();
g.drawImage(img, 0, 0, null);
g.dispose();
}
/**
* Draw picture (gif, jpg, or png) centered on (x, y).
*
* @param x the center x-coordinate of the image
* @param y the center y-coordinate of the image
* @param s the name of the image/picture, e.g., "ball.gif"
* @throws RuntimeException if the image is corrupt
*/
public static void picture(double x, double y, String s) {
Image image = getImage(s);
double xs = scaleX(x);
double ys = scaleY(y);
int ws = image.getWidth(null);
int hs = image.getHeight(null);
if (ws < 0 || hs < 0) throw new RuntimeException("image " + s + " is corrupt");
offscreen.drawImage(
image, (int) Math.round(xs - ws / 2.0), (int) Math.round(ys - hs / 2.0), null);
draw();
}
/**
* Gets a buffered image.
*
* @return the image
*/
public BufferedImage getBufferedImage() {
if (image == null && isAnImage) {
Image im = getImage();
if (im == null) {
isAnImage = false;
} else {
image =
new BufferedImage(im.getWidth(null), im.getHeight(null), BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = image.createGraphics();
g2.drawImage(im, 0, 0, null);
}
}
return image;
}
/* Draws the ball at its current position */
public void draw(Graphics2D g) {
double imageWidth = img.getWidth(parent);
double imageHeight = img.getHeight(parent);
// translate image such that its centred on its actual position
objectTransform.setToTranslation(
(double) pos_x - imageWidth / 2, (double) pos_y - imageHeight / 2);
// // this rotates the planet!
// objectTransform.rotate(Math.PI/800,50.0,51.0);
g.setTransform(new AffineTransform());
g.drawImage(img, objectTransform, parent);
}
/**
* Draw picture (gif, jpg, or png) centered on (x, y), rotated given number of degrees
*
* @param x the center x-coordinate of the image
* @param y the center y-coordinate of the image
* @param s the name of the image/picture, e.g., "ball.gif"
* @param degrees is the number of degrees to rotate counterclockwise
* @throws IllegalArgumentException if the image is corrupt
*/
public static void picture(double x, double y, String s, double degrees) {
Image image = getImage(s);
double xs = scaleX(x);
double ys = scaleY(y);
int ws = image.getWidth(null);
int hs = image.getHeight(null);
if (ws < 0 || hs < 0) throw new IllegalArgumentException("image " + s + " is corrupt");
offscreen.rotate(Math.toRadians(-degrees), xs, ys);
offscreen.drawImage(
image, (int) Math.round(xs - ws / 2.0), (int) Math.round(ys - hs / 2.0), null);
offscreen.rotate(Math.toRadians(+degrees), xs, ys);
draw();
}
public JGPoint getSize() {
return new JGPoint(img.getWidth(observer), img.getHeight(observer));
}
public void paint(Graphics g) {
Graphics2D g2d = (Graphics2D) g;
int width = 640 - image.getWidth(this);
int height = 480 - image.getHeight(this);
g2d.drawImage(image, rand.nextInt(width), rand.nextInt(height), this);
}
